8. Consider the set A = {2, 3, 4, 5, 6, 7}. a) How many different 4 digit numbers can you make from the elements of A used without repetition? b) How many 4 digit numbers can you make from the elements of A without repetition that would begin with 7? c) How many 4 digit numbers can you make from the elements of A without repetition that would begin with 5 or 7? d) How many 4 digit numbers can you make from the elements of A without repetition contain the digits 3 and 5 adjacent to each other? e) How many 4 digit numbers can you make from the elements of A without repetition that would begin with 7 or end with 4?
8. Consider the set A = {2, 3, 4, 5, 6, 7}. a) How many different 4 digit numbers can you make from the elements of A used without repetition? b) How many 4 digit numbers can you make from the elements of A without repetition that would begin with 7? c) How many 4 digit numbers can you make from the elements of A without repetition that would begin with 5 or 7? d) How many 4 digit numbers can you make from the elements of A without repetition contain the digits 3 and 5 adjacent to each other? e) How many 4 digit numbers can you make from the elements of A without repetition that would begin with 7 or end with 4?
Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
Problem 1RQ
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please help me find the answer for 8e.
Transcribed Image Text:8. Consider the set A =
{2, 3,4, 5, 6, 7}.
a) How many different 4 digit numbers can you make from the elements of A used without repetition?
b) How many 4 digit numbers can you make from the elements of A without repetition that would begin with 7?
c) How many 4 digit numbers can you make from the elements of A without repetition that would begin with 5 or 7?
d) How many 4 digit numbers can you make from the elements of A without repetition contain the digits 3 and 5
adjacent to each other?
How
many
4 digit numbers can you make from the elements of A without repetition that would begin with 7 or end
with 4?
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